Carbureter.



E. S, SMITH.

CARBURETER.

' vAPPLICATION FILED MAY 12, 1911. I 1 1%,267. Patented May 23,1916.

5 SHEETS-SHEET I x E. 8 SMITH.

CAHBURETER.

. APPLICATION FILED MAY 12, 1911. v 1 1 84 267, I Patented May 23,1916.

' 5 5 SHEETS-SHEET 2. /0 J0 5 we who? Witnesses E. 8. SMITH.

CARBURETER.

APPLICATION FILED MAY 12, 1911.

1 9 1 8%,g6'? Patented May 23, 1916.

5 SHEETS-SHEET 3- E. S. SIVHTH.

CARBURETER.

APPLICATION FILED 111111112, 1911. 1 184 267, Patented May 23, 1916.

' 5 SHEIETS,-SHEET 4. 37 7/5 wi/tweooeoz 3mm Mod 1 a v QEM QHQZMMW Patented May 23, 1916.

.s SHEETQ-SHEET 5.

E. S. SMITH.

CARBURETER.

APPLICATION FILED MAY 12, 1911.

6 m wk n a. A m M wt Mucous citizen of the United States, and a resident UNITED sTArEs'. PATENT o FioE.

ELMER ssmirn, or BOUNDBROQK, NEW JERSEY, Ass-xenon, m: MESNE ASSIGNMENTS, '10 INTERNATIONAL ACCESSORIES MANUFACTURING coMrANmIoF WILMINGTON, nELAwnnn-A coRroRAmoN or DELAWARE. l

CARBURETER.

To all whom it may. concern Be it known that I, ELMER S. SMITH, a

of Boundbrook, Somerset county, State of New Jersey, have .inventedcertain new and useful Improvements in Carbureters for Hydrocarbon-Engines, of which the following is a full and clear specification -11lustrated in the accompanying drawings, the

particular novel features being more fullyointed out in the annexed claims.

The object of my invention is to provide a simple and highly eflicient carbureter for automatically atomizing liquid fuel and mixing it with air to form a mixture of the form at the time, attached.

My improved carbureter is adapted for use in stationary hydrocarbon engines as well as in'hydrocarbon engines used for propelling vehicles or boats or the like.

The quantity and quality of gas supplied to the cylinders of a hydrocarbon engine should vary in accordance with the demands made on the engine and the quantity of the .regulation as well as of predetermined adfuel, for instance'gasolene, supplied to the air on the suction strokes of thepiston or pistons, should be capable of automatic justment and to accomplish these objects are among the purposes of my invention.

In'particular my inventionfrelates to im provements on the carbureter, described and illustrated in my copending application, Serial Number 497,646, filed May 22nd, 1909, of which the structure illustrated in the present application is an improvement'in' form as wellas in function.

In the accompanying drawings: Figure 1 is a side elevation of my improved carbureter, the carbureter being shown, in full view. Fig. 2 is a vertical section on the line wm in Fig. 1 seen in the direction of the arrow. Fig. 3 is a vertical section through the carbureter at right angles to the section shownin Fig. 2. Fig. 4 is a full view of the float receptacle illustrated in vertical section in Fig. 3. Fig. 5 is a sectional end view of the trunnion 25 on the line g-g,' in the direction of the arrow. Fig. 6 is a plan view of a small portion of the right hand" portion of the carbureter shown in Fig. 1,

. Specification of Letters Patent.

Patented'May 23, 1916.

Application filed May 12, 1911. Serial o. 626,678.

the section shown in Fig. 6 being taken -on the line ygr in Fig. 1. Fig. 7 is a longitudinal section in larger scale'of one of the fuel nozzles attached to the float-receptacle. Fig. 8 1813 plan View of the lower hemisphere of the ,carbureterwith the fioat recepof the carbureter on the line H in Fig. 1,

the float receptacle 'beingshown in full view and tllted into its extreme position at which no fuel 1s supplied to the engine. Fig. 11 is a similar view to that shown'in Fig. 10 with the lower hemisphere of the shell removed and the float receptacle tilted into the opposite extreme position at which the maximum amount of gas is supplied to the engine.

' Fig. '12 is a full side elevation .of a modification of the form of carbureter illustrated in Fig. 1, and Fig. 13 is a vertical section I through the carbureter shownin Fig. 12, on

the line 22. seen. in the direction of the arrow.

The fundamental idea of my carbureter as disclosed in the aforesaid copending application isthe use of a ,fuel receptacle pivotally mounted inside of an air. intake casing leading to the engine,,=the fuel receptacle being provided withv a. plurality of fuel nozzles mounted at difiercnt levels above the normal gasolene level in the receptacle, so that when said receptacle is tiltedfon its pivots a' larger or smaller number of fuel nozzles are carried into a position in which .gasolene will flow out of them, so that the air passing.

through the intake pipe may be enriched with fuel from such nozzles. This same idea. has been reduced to practice in the present application in my improved form in the following manner.

Referring. to Figs. land 2, 10 and 11 represent together a shell orcas'ing, the baseof which forms an air inlet while the threaded upper end 12 forms the mixture outlet,

whereby the casing may be attached to the air intake pipe of the engine. These two portions have approximately the form of two hemispheres as may be seen from these two figures and they will hereinafter. be referred to as such; The upper hemisphere 10 is a hollow casting, its interior forming the car= bureting chamber, and the lower hemisphere 65 ings 34, 35, for the upper hemisphere consists of aring 13. having its upper face of substantially the same diameter as the diameter of the upper hemisphere and flaring outwardly as shown in Figs..l and. 2, a substantially.hemispherical screen cap 14 being attached to the inside ofthe larger end ofthis ring so that the ring and cap together form the lower hemisphere ,of the 'carbureter. The screen cap is made of wire netting, preferably brassi wire. 'The two hemispheres may be" joined by any suitable '2, where two lugs 15, and 16, 16 are pro-- vided on diametrically opposite sides of .15

means for instance as shown in Figs. 1 and each hemisphere, respectively, the lugs 15 and 16 of each side being 'yieldinglyheld together by means of a spring hasp consisting of a bolt 17 having a half roundhead 18' at its lower end with which it rests in a socket provided in lug 16. The bolt passes through lugs 1 6 and '15, and itsouter end protruding beyond lug "15 is disposed in a thimble 19 with a spring21 interposed. between anut 20, attached to the upper bolt end, and the bottom of the thimble. Thimble 19 is curved .at its lower end with which it is seated in-lug 15. Thus the two hemispheres are held yieldingly together. One of the lugs 15, for instance the v one on'the right hand side in Fig. 2, is

slotted as shown at 22 (in Fig.9 on-the left I hand side) so 'thatby-pulling the thimble'19 from its seat the hasp may be swung out and thus the two lugs be disconnected from each hand side may not provided with such slot, so I that'the lower hemisphere is prevented-from.

other, whereas if desired lug 15 on the left fbeing disconnected entirely from the upper hemisphere. .However, by. providing the cone shaped portions 28 on all the lugs where. indicated, it is possible to swin together and at the same timeturning them away from each other so that the inside of. each. hemisphere is made accessible thereby.-

Referring now to Figs. '2 and 3. Within this outer shell of the carbu'reter formed by the two hemispheres is disposed onhorizon' tal trunnions 24 and 25 float receptacle 26, which consists of an upper half :27 which carries trunnions 24 and 25, as clearly seen boss,32 provided in the lower half, 'so that'- by turning nut 33, the two halves/may be clamped tight 'togetherr'The trunnion axis.

- a-a coincides v,with the plane at which the hemispheres 10 and '11 of the outer shell join, and both hemispheres are cor respondinglyprovided with trunnion bearthe, lower hemisphere'ofi" the upper asif' hinged and 36, 36 for thelower hemisphere. Both trunnions are hollow as shown in Fig. 3 but closed at their outer ends, trunnion -24 having a rocking arm, 37 attached to. it which protrudes through trunnion bearing 35 which for this purpose has a cutaway portion 38 as shown in Fig, 9,'which permits the rocking of the float receptacle by means of arm 37, on its trunnion bearings through i a certain ang1e.- "Trunnion 25 is preferably closed by means ofascrew plug 39 as shown in Fig. 3. I Within the'latter trunnion is mounted a sleeve 40, held in 'place therein by means of screw 4l,and in this sleeve is disposed 'a' transverse pivot pin 42, whichruns through this sleeve at an angle to the sch horizontal plane throughthe trunnion axis f a, a: and which is also disposed slightly above this axis. The location of this pin may be clearly seen from 5 which shows an end view of trunnion 25 on the section line 'gg in Fig; 4. The pivot pin.

42 is shown in this figure in dotted. lines.

On pivot pin 42 is mounted a lever 43 which carries on its inner end which is located in float receptacle 26, the float 44,- this float having an annular shape; so as to permitthe passage of rod 29, previpusly'mentionedy through its center'without interfering with -the movement of the float.

The other lever end 45 protrudes into the hollow space within trunnion 25 and carries at its outer end a -knob 46"preferably in the form of a rounded roller journaled on said lever to lessen friction and wear, which is in line with an opening'47 provided in the'cylindrical wall of trunnion 25 at its upper side as shown in it will be noted that this opening occupies part ofthecircumference of thetrunnion wall, so as. to permit. th'efree passage of float valve 48' through it, the lowerend of which rests upon the outer periphery of knob 46., Floatva'lve 48 is housed in valve receptacle 49.0f'the form commonly known in the art, its cone 50 seating in the receptacle at 51, and the gasolene being supplied through the lateral outlet 52'of the receptacle. y e

.The 'valve stem is three-cornered as shown in Fig. 6 so as to permit the free flow of gasolene between'it. and the walls Figs. 3, 4 and 5. In particular from Fig-.5, I

of the receptacle as is also commonly .known in the art. Float receptacle -29.is seated with its lower end 53 in a-hollow boss 54 integral with the upper hemispllere 10' and in vertical alinement with the tr; nnion axis h0;. The lower end 53 of they valve receptacle is square as shown in Fig. 6, only substantially its corners touching the round boring of boss '54. The openings produced therebybetween the square and the boss wall have the purpose of admitting air to.

the interior of the boss of the float receptacle for the purpose which willbe herinat ter referred to. For'this reason the valve receptacle does not seat tightly on the upper end of boss 54 the small shoulder preventing itsseating sothat air may be admitted to the interior of trunnion 25. Set screw 55, Fig. 6, holds the valve receptacle in place in'the boss. The gasolene level is supposed to be in line with the trunnion axis aa, Fig. 3, and the float is adjusted accordingly so that at this level the float 44 assumes substantiallyv the position. as shown in Fig. 3. -In this position the gasolene valve 50 is seated by its own weight as well as by the gasolene pressure in the line, whereby its lower end just touches the periphery-of knob 46 laterally of the verti- .the foot of valve 48 touches knob 46 at a point laterally of. the vertical line through the center of the knob. If now for instance the float receptacle is rocked by means of its arm, previously described with reference to Fig. 5, which causes trunnion 25 to revolve counterclockwise, it will be noted that during such motion the knob, owing to pivot pin 42 being mounted eccentrically to the trunnion axis, will be raised slightly so that valve 50ois lifted thereby slightly from its seat and admits gasolene. This, however, occurs only at the rocking of'the float receptacle through a considerable angle into a position at which the maximum amount of gasolene is required and ahigher gasolene level is preferable, as will be hereinafter des'cribedin detail.

I As will be noted from Figs. 2 and 4, the upper receptacle -portion27 is provided at one sidewith a number of nozzles, outlets or orifices 60 distributed over one half of the upper portion in staggered relation commencing with one nozzle slightly below the gasolene level, when the float receptacle is in such position that its operatlng arm' stands vertical. The other nozzles are located above at various distances from the lowermost nozzle, as-clearly shown in Fig. 4. In Fig. 2, the lowermost nozzle 60'is shown with the float receptaclein the position at which the nozzle'is slightly below the gasolene' level ZZ, two other nozzles being shown disposed at various distances from this level.' It will be noted that if in Fig. 2, the float receptacle is tilted clockwise on its trunnions, one or more of the gasolene nozzles located above the lowest nozzle, will'. be immersed into'the gasolene and deliver gasolene through the orifice 61, Fig. 7, to'

the outside. On the other hand, if the float receptacle is tilted from the position shown in Fig. 2, counterclockwise even the lowermost n'ozzlewill emerge from the gasolene and no gasolene canbe delivered to the'outflside through any of these nozzles. The latter position is shown in Fig. 10, and the former position in Fig. 11, with the gasolene level marked Z-l. v From Fligs. 2 and 4, it will be noted tha the upper half 27 of the float. receptacle is provided with a circular flange 62, which is substantially of the same diameter as the inner rim 63 of the upper hemisphere v10 of the carbureter shell, so that when the float receptacle is in the position shown for instance in Fig: 2, it will obstruct the passage of air from the'outside through screen 14,

into. the space between the upper hemisphere and the float; receptacle which leads to the engine save for a' small space at which thisrim ls'cut'away. This space may be seen.

in front view in Fig.4, between the points 6, b and in plan view in Fig. 8, where also the rim 63 may be seen inplan view. At this cut away portion the lowermost nozzles 60 are provided so that if the air is drawn in by the engine in entering the. carbureter through screen 14', it can only pass upwardly through the cut away portion bb which leads it past the nozzles so that it is enriched with gasolene at this point, so long as the receptacle is not tilted. However, when the receptacle is tilted clockwise more or less into the position shown'in Fig. 11, flange 62 receding downwardly from rim 63 at the right hand side of the figure, enlarges the passage between the lower and upper hemisphere, thus admitting more air which then rushes past a greater or smaller number of nozzles which are brought by such tilting into a position in which they can. deliver gasolene from the float receptacle to the Outside in the manner previously described. It'will be noted that thus with the greater admission of air also the amount of fuel supplied to the air is increased, and by properly dimensioning the size of the orifices of nozzles60 and their location and number, it may easily be brought about that no matter how little or how much the float receptacle is tilted, or in other words, how much or how little gas is admitted to the engine, it will always have the same quality;

or it maybe brought about that according also be noted from Fig. 11, that'when the float receptacle is tilted intoa position in which the nozzles supply fuel and in which air is allowed to pass from the lower to the upper hemisphere, this can occur only at the right hand side of the float receptacle, Ito

respectivelyat the right hand side of-the ,upper hemisphere, whereas at the left hand side of the hemisphere rim 62- -receptacle still forms a substantial obstruc: 'tion to the air save for a very small space, .owing to the spherical shape ofthe wall of hemisphere 10. The passage ever, is notentirely unobstructed, a valve 65 e SGGII being attached to the upper portion 27 ofthe float receptacle in such manner; that it seats against a valve seat 66 which'is formed spherical and concentric with the receptacle, the valve being held ontoits seats by means of spring 67 This structure canbe clearly from Figs. 2, 3, 4, 10 and 11. The valve is mounted'on an upper extension of rod'29 so that it can slide on this red and spring 67 is placed into recess 31 of the float receptacle previously referred to. From the drawings it will be obvious that the ar rangement is such that the valve may be depressed downwardly into this recess 31,

when it is'lifted from its seatby the following means. Extending in the direction of the plane in which'the float receptacle is tilted a rib is provided on the upper side of valve 65 which may be plainly seen at 68in f cross sectionin Fig. 2, and in side view 111' Figs. 10 and 11 and in front view in Fig. 4, A This rib or cam is curved, not with the: same radius from the trunnion axis to the valve seat, but it increases in height from the seat portion of the valve toward the valve center as may be clearly seen from Figs. 2'," 10 and 11. Thus'if thefloatreceptacle is tilted to the right asshownin Fig. 11, the

valve not only opens the passage toward-the mouth '12 of the carbureter by swinging away from its seat, but it'also is depressed 'downwardly,and-thus moved away from its a seat by means of cam 68 which rides up .onto

valve seat 66 in the manner shown'in Fig. 1 1. This. increases the passageway to the upper portion of the carbureter and it; is obvious that the form ofthis cam-68 may 7 be chosen so that: the valve may be lifted anysuitable distance-01f its normal .seat

.. when the float receptacle is rocked into active position in which the air is enriched with fuel. On the other hand,"if the float receptacle is rocked inthe opposite direction a as shown in Fig 10, valve merelyopens the passageway fromdzhe lower portion of- .the upperhemisphere to the upper portion in similar mannerin which farther below. "rim 62 admits pure airfrom the lower hemisphere to the upper hemisphere. Thus if forinstance in case the hydrocarbon engine is used for a] vehicle, and'the latter should descend a hill, where nopower is required fromthe engine, the float receptacle may be tilted into the position shown in Fig. 10,

of air from the space b'etween the nozzles and the walllofthe upper hemisphere to the upperopening'12,how-

position of the float receptacle valve 651s completely seated andno .air could pass-upward to the engine, were it not for a small V -shapedcut provided at the left hand side of valve 65 at 69 in Fig.'2. This V-cut may he clearly'seen in plan view in Fig. 8.- When the receptacle is tilted into active position, Increases 1n size and thus admlts an accordi'ng to,the degree to which air is admitted from the I lowerhemisphere to the upper hemisphere of'the outer shell until the cam 68 previousl v described comes-into action which liftst e valve from its seat. Besides this V-shaped cut 69 there may be also a few holes-provided in the web of the valve as for instance indicated at 70 in Figs; 2 and 8.

which may 'thus determine the minimum amount of mixture which is'admitted to the engine, and-which may be just suflicient to keep the engine runningvwithout load; It is of course obvious that the holes 70 may be omitted'and V-cut 69 enlarged'accordingly.

It is well knownthatin starting a hydrocarbon engineit is desirable quite frequently to supply .an extra-rich mixturefor the first few strokes, which is generally known in. the

art as a socalled priming charge? This charge is frequently sup'plled to. the cylin ders ,directly through. socalled priming.

cocks; also recently carbureters have been fitted out with a butterfly-valve'or similar means at the mouth of the air intake of the carbureter which,. when closed, causes a greater amount of gasolene to be drawn from the 'gasolene nozzles by the suction of the engine through thelac'k of air supply. To providepa. richer mixture "for the starting, I provide the following means. Substantially across the whole width of the cut away portion fine wire screen 80 which formsapocket in front .of the lowermost nozzle 60 as will be clearly seen from Fig 2. In order to start the engine the float" receptacle 2 is put into theposition shown in Fig. 2, i which the -lowermost nozzle'is slightly below the gaso-- lene level as previously described. By the time the operator gets ready to crank up the engine a quantity of gasolene'has oozed out I), b in Fig. 4, is stretched a of this nozzle and spread over the finescreen 80 so that when theengine draws in mixatomized by the rush of air in addition to the ture this finely divided fuel on screen 80'is and thus to the interior of the-float receptacle 26. Thus when the carbu'reter is, in opabove the 'gasolene, which would tend toaffect the amount of fuel furnished by the nozzles, I provide a small vent opening 81 which communicates with the space in theupper hemisphere between valve 65 and rim 62 of the float so that through this opening,

the pressure between these two spaces may easily be equalized. Besides it has been previouslystated with reference to fuel valve.

receptacle 49 that the lower portion 53 of this receptacleis square-so that as also previously stated there are small passages of air between the sides of the square and the round boring or boss 54, which lead 'from the outside to the interior of trunnion 25 eration' and a vacuum should tend to form inside of the receptacle, air is also supplied througi these last I mentioned passages which are marked 85in Fig. 6. This slight air supply to the interior tacle has also the advantage of preventing any leakage of gasolene to the outside which might be spilled onto the trunnion bearing when enteri g the interior ofthe trunnion through opening 47.

It may be stated with reference to the number of nozzles which may be attached to the float receptacle that for instance in case it should be found that in a certain position of tilting too ,many nozzles are sup plying fuel one or the other according to their location, may be substituted by a nozzlewith a small orifice, or with no orifice as shown at Fig. 4, and thus any suitableamount of gasolene may be supplied to the air for a given position of' the float receptacle. In Figs. 12 and 13, I have illustrated a modified form of the carbure'ter just described which pertainsnot so much to the operation of its essential elements as to the outer form of the lower hemisphere of the shell which surrounds the float receptacle. In Fig. 13 this form is shown in longitudinal section on the line 22 seen in the direction of the arrows in Fig. 12 and it will be noted that the upper hemisphere 19, so far as its shape and function are concerned, is the same as that shown in the modification previously described; also the construction of the float receptacle 20 and valve 65 is the same so that the description of these elements in the modified form may be omitted. The form of the lower hemisphere, however, is considerably distinguished from that of the rarhurcter shown in Figs. 1 to 11. In the the engine is running.

of the float recep-,

-hemisphere 10 (as for sage for the air drawn in a large. amount of .the upper hemisphere.

modification just described, it will be noted and it has also been mentioned that the annular portion 13 which joins. the upper instance clearly outwardly. This unobstructed pasthrough screen 14, inasmuch as there isan annular space of considerable width between the lower edge of rim 13 and the lower half of thelfloat receptacle 26. In the form shown in Figs. 12

shown in Fig. 2) flares affords a very convenient and.13, on the other hand, it will be noted that the rim 90 with which the lower hemisphere is joined to the upper hemisphere 10, is cylindrical, screen 14 being otherwise joined to the lower edge of the rim in similai manner as'the screen 14 is joined to the rim in the form just described. This form may be convenient in certain instances where only small space is available for the carbu- 'reter. However, it will be noted that by forming rim cylindrical the annular space between the rim and the lower portion of float receptacle 26, now becomes considerably smaller so that the air passage past the fuel nozzles is considerably obstructed thereby. In order to supply sufficient air in this case when the throttle is wide open and air is required, I provide windows91in rim 90 opposite from where the fuel nozzles are located and I preferably provide these windows with wire screen so that through these ,windovszs air can be freely supplied to the interior of the carbureter. The other distinguishing feature of the form illustrated in Figs. 12 and 13 is the manner in which-the lower hemi-' sphere of. the outer shell is joined to the up- In the modification shown in Figs. 1 to 11, and particularly as shown in Fig. 2, the two hemispheres are joined together by spring hasps 17-21. These spring hasps have the advantage of yieldingly drawing the lower hemisphere against the upper hemisphere L0 whereby thus the trunnion bearings 3436 are pressed tight against the trunnions and thus prevent leakage of the gasolene and also compensate for wear. These spring hasps-also have the advantage that in case of socalled back firing of the engine through the carbureter which is likely to occur in case of too lean a mixture, the lower hemi sphere will slightly yield owing to the construction of the spring hasps and prevent injury to the carbureter.

In the modification shown in Figs. 12 and 13 the two forms are joined together by means of a hinge 92 at one side and a spring clasp 93 at the opposite side which embraces the bead 94 provided at the rim of To sufliciently and yieldingly press the trunnions of the float receptacle against the upper trunnion bearings, a spring 95 is provided in the wire basket 14 3 fuel. When into which rod 29 is Screwed from the 1nside, protrudes to the outside correspondingly and spring 95 bears against this boss, the shape of spring 95 conforming withthe' circle which the boss describes when the float receptacle is tilted into and out of operative position. v

I have found that when the carbureter isin action the inrushing air, acting against the underside of the fuel receptacle, tends to lift it and hold its trunnions firmly against their upper seats inthe casing, thus sealing the joint eflectually from leakage of the carbureter is not in action, the fuel passage is closed by the valve, .and the trunnions are as heretofore described continued'to be held up by the springs.

I claim: 1 1. A carbureter of the character described, having a shell provided with an air inlet f and a mixture outlet, a rotatable fuel receptacle disposed in said shell andhaving means for supplying fuel to and discharging it .from said receptacle, a valve for controlling the supply of fuel'to said receptacle and means within the receptacle for controlling saidvalve.

2. Acarbureter of the character described, having a shell provided with an air-inlet and a mixture outlet, a rotatable fuel receptacle disposed in said shell and adapted in normal position to act as a valve for the '35.

passage therethrough and having means for supplying fuel to and discharging it from said receptacle, a valve for controlling the supply of fuel to said receptacle and means within the receptacle for controlling said valve.

3. Acarbureter of the character described, having a shell provided with an air inlet and a mixture outlet, an approximately spherical rotatable fuel receptacle disposed in said shell and having means for supplying fuel to and discharging it from said receptacle, a valve for controlling the supplyof fuel to said receptacle, and means within the receptacle for controlling said valve.

4. A carbureter of the character described, having a shell provided with an air inlet and a mixture outlet, and between them an approximately hemispherical carbureting chamber, and a rotatable fuel receptacle disposed in said shell and adapted in normal position to act as a valve for the passage therethrough and having means for supplying fuel to and discharging it from said receptacle.

5. Acarbureter of the character described, having a shell provided with an air inlet and a mixture outlet, a rotatable fuel receptacle disposed in .said shell, and having means for supplying fuel to and discharging it from said receptacle, a valve for controlling the supply of fuel .to' said receptacle and means within the receptacle for controlling said valve, the said means pivoted to and rotatable with the receptacle.

6. A carbureter of the character described, having a shell provided with an air inlet and a' mixture. outlet, ceptacle disposed insaid shell and having means for supplying fuel to and dischargk ing it from said receptacle, a valve for controlling thesupplyof fuel to said receptacle and means within the receptacle for controlling said valve,'theconnection between' the said -last mentioned means and the valve being such as to increase the fuel supply when the receptacle is rotated from normal. 7 A carbureter of the character descrlbed,

a rotatable fuel rehaving a shell provided with an air inlet anda mixture outlet, a rotatable fuel receptacle mounted in said shell and having a hollow trunnion, the wall of the receptacle being apertured to discharge fuel in in creasing quantities as the receptacle is ro- 'hollow trunnion, the wall of the receptacle being apertured to. discharge fuel in increasmg quantities as the receptacle isrotated from normal, valve-controlled means for supplying fuel to said receptacle through said hollow trunnion and 'a' float within the receptacle operatively connected to the fuel supply valve,'and means for varying the connection between the float and the valve to increasethe fuel supply when the receptacle is rotated.

.9. 1A carbureter of the character described, having a' shell provided with an air inlet and a mixture outlet, a rotatable fuel receptacle mounted in said shell, the wall of the receptacle being apertured to discharge fuel in increasing quantities as the receptacle is rotated from normal, valve-controlled means for supplying fuel to said receptacle, and a float within the receptacle operatively connected to the 'fuel supply valve, means for varying the connection between the float and the valve to increase the fuel supply when-the receptacleis rotated, and means for stopping the fuel supply when the receptacle 1s. rotated in position to prevent discharge of fuel. 1

10. Ina carbureter, the combination comprising a'housing having an air inlet and a mixture outlet and whose diametrical horizontal cross sectional area is less than all other diametrical areas, gasolene container provided with onevor more orifices extending through the walls of said container, adapted to.- permit the escape of gasolene from said container and into said housing.

11. A carbureter of the character described, having a substantially hemispherical shell open at diametrically opposite sides to afford an airpassagetherethrough, a rotatable fuelreceptacle disposed therein having its horizontal dimensions, substantially equal to the inner horizontal dimensions .of said shell and having its pivotal, axis coinciding with the lane of said horizontal dimension, but having a smaller vertical dimension so as to normally obstruct said passage and when rotated. to gradually open said passage, said receptacle having an apertured wall for discharging fuel into said shell in amounts increasing with the angle of rotation whereby said passage simultaneously increases in size withsaid fuel amount.

12. A carbureter of the character described, having a substantially hemispherical shell open at diametrically opposite sides to afford an air passage therethrough, a rotatable fuel receptacle disposed therein having its horizontal dimensions substantially equal to 'the inner horizontal dimensions of saidshell and having its pivotal axis coinciding with the plane of said horizontal dimensions, but having a smaller vertical dimension so as to normally obstruct said passage, and when rotated to gradually open said passage, said receptacle having an apertured wall for discharging fuel intosaid shell in amounts increasing with the angle of rotation, whereby said passage simultaneously increases in size with said fuel amount, said receptacle having means for supplying fuel to it and means within its walls for controlling said fuel supply to maintain a constant fuel level therein. v 13. In a carbureter, the combination comprising a housing, and a gasolene container of approximately spherical configuration pivotally mounted therein, said container being of sufficient size to approximately extend completely acrossthe said housing at the point of maximum horizontal cross-sectional area of the container, and said container being provided with orifices adapted to admit of the passage of gasolene from the interior of said container to the interior of said housing in exact accordance with the requirements therefor.

14.In a carbureter, the combination comprising a housing permitting of-acce ss to its interior and having an air-inlet opening and a mixture outlet opening, readily removable means, including a gasolene container pivotally mounted in saidhousing' intermediate said openings and adapted to seal communication therebetween when in a normal inoperative position, said container being provided With orifices which'extend through the wallthereof, and means for optionally depressing or elevating said orifices with respect to'the level of gasolene within said container whereby the gasolene may be fed from said container in accordance with the requirements of an engine,'and means for. temporarily connectlng said conta1ner,wh1lestill permitting of rotation thereof, with a valve-controlled gasolene supply conduit adapted to cut off automatically the How of gasolene therefrom upon the removal of said container from said housing and adapted'to normally permit the flow of gasolene into said container when the gasolene therein falls below a predetermined level.

15. A carbureter having a chamberv formed by an outer shell of substantially spherical shape divided'into two halves which are suitably connected with each other, each half having an opening for the passageof mixture or air through said shell, said shell containing'a float receptacle oscillatorily disposed therein on trunnions arranged on a substantially horizontal axis, and adapted to contain liquid fuel, means for supplying the fuel through one of said trunnions to said receptacle, a valve suitably connected with said float toinaintain a constant fuel level in the receptacle, said receptacle having a plurality of fuel nozzles disposed in its wall and adapted to be rendered activein larger or smaller number according to the angle to which said receptacle is tilted to mix with the fuel air drawing through said chamber past said nozzles.

16. In a carburetor of the character described,having a substantially spherical shell formed of two joined halves, a float receptacle disposed therein adapted to oscillate on trunnions journaled in said shell, a float in said receptacle attached to an arm pivotally disposed in a sleeve fastened in one of said trunnions, said trunnion having an opening in the upper portion of its wall which communicates with a fuel valve chamber attached to the upper half of said shell perceptacle to gradually scribed, having 'an outer shell forming thecarbureting chamber and a fuel receptacle rotatably disposed therein on trunnions and adapted to discharge fuel into said shell and a valve housing detachably mounted on said,

shell and containing a valve for controlling the fuel supply to said receptacle through one of said trunnions, the interior of said receptacle communicating with the outside air througha slight leakage provided at the joint between said valve housing and said shell.

18. In a carbureter, the combination with an outer shell having an air inlet and a mixture outlet, afuel' receptacle rotatably disposed therein and dividing said shell'into an airand a mixture compartment and normally substantially closing the'passage therebetween, means for rotating said re means in the receptacle wall for simultaneously supplying fuel compartment in amounts increasing with the size of said passage, and. a valve member disposed in said mixture outlet and. op-

eratively connected with said receptacle to close said outlet when the receptacle is in norm-a1 position and to 0 en it in accordance -with the rotation of sai receptacle.

19. In a carbureter, the combination with an outer shell having an air inlet and a mixtureioutlet, a fuel'receptacle rotatably disposed therein and dividing said shell into an airand a mixture compartment and normally substantially closing the passage therebetween, means for rotating said receptacle to gradually open said passage, and means in the receptacle wall for simultaneously supplying fuel into said mixture compartment in amounts increasing with the size of said passage, and a valve member disposed in said mixture outlet and operatively connected with said. receptacle to close said outsize of said passage,

let when the receptacle is in normal position and to open it inraccordance with the rotation of said receptacle, said valve having ously supplying fuel into said mixture compartment in amounts increasing with the and a valve member in saidmixing chamber seated against said outlet in normal receptacle position and attached to said receptacle to slide off and onto its seat in accordance with the rotation of open said passage, and,

into said mixture said receptacle when the, latter is rotated out of and into normal. position in either direction. j

21. In a carburetenthe combination withan outer shell having an air inlet and a qmixture outlet, a fuel receptacle rotatably disposed therein and dividing said shell into an airand amixtu're compartment and nor mally substantially closing the passage therebetween, means for rotating said receptacle to gradually open said passage, and means in the receptacle wall for simultaneously supplying fuel into said mixture compartment in amounts'increasing with the size of said passage, and; a valvemember in said imixing chamber. seated'against said outlet in normal receptacle position [and attached to sa d receptacle to slide off and onto its seat ln-accordance with the rotation of said receptacle when the latterlis rotated out of and into normalposition in either direction, said valve having an openlng admitting a fixed amount of mixture to said outlet when the valveis closed and the receptacle is in normal position.

22. ;In 'a carbureter, the. combination with an outer shell, having an air inlet and a mixture outlet, a fuel receptacle rotatably disposed therein and dividing said shell into an airand'a mixture compartment and normally substantially closing the passage therebetween, means for rotating said receptacle :to gradually open said passage, and means in the receptacle wall for simultaneously supplying fuel into said mixture compartment inamounts increasing With the size of said passage, and a valve member disposed in said -mixture outlet and operatively connected with said receptacle to close said outlet when the receptacle is in normal position and to open it in accordance with the rotation of said receptacle, and means for varying the extent of said Valve opening relatively to the angle of rotation of said receptacle in one direction, but for permitting the extent of valve opening to remain in proportion tosaid receptacle rotation when the latter is rotated in the other direction.

' 23. In a carbureter of the character described, the combination with an outer shell of substantially spherical shape having an air inlet in its lower hemisphere, and a mixture outlet in its, upper hemisphere, a fuel receptacle pivotally disposed in said shell and dividing said shell into an airand a mixture compartment, means for tilting said receptacle to establish an air passage between said two compartments, said receptacle having orifices in its wall adapted to supply fuel to the air current passing through said mixture compartment, when the receptacle is tilted into operative position in one direction, and a' valve disposed on the upper side of said receptacle, and yieldingly seated against said mixture outlet in normal position of said receptacle, whereby said valve slides off itsseat and opens said mixture outlet according to the degree to which said receptacle is tilted.

24. In a carbureter of the character described, the combination with an outer shell of substantially spherical shape having an air inlet in its lower hemisphere and a mixture outlet in its upper hemisphere, a fuel receptacle pivotally disposed in said shell and dividing said. shell into an airand a mixture compartment, means for tilting said receptacle'to establish an air passage between said two compartments, said receptacle having orifices in its wall adapted to supply fuel to the air current passingthrough said mixture compartment, when the receptacle is tilted into operative position inone direction, and a valve disposed on the upper side of said receptacle, and yieldingly seated against said mixture outlet in normal position of said receptacle, whereby said valve slides off its seat and opens said mixture outlet according to the degree to which said receptacle is tilted, said valve having a cam on its upper face extendingfrom the valve center radially thereon and of suitableheight to bear against the valve seat to remove the valve from its seat the further, the greater the angle is through which said receptacle is tilted, to increase thesize ofthe passage between said mixture compartment and said outlet, when the receptacle is tilted into operative position.

25. In a carbureter of the character described, the combination with an' outer shellof substantially spherical shape having an air inlet in its lower hemisphere, and a mixture outlet. in its upper hemisphere, 'a fuel receptacle pivotally disposed in said shell and dividing said shell into an airand a mixture compartment, means for tilting said receptacle to establish an air passage between said two compartments, said receptacle having orifices in its :wall adapted to'supply fuel to the air current passing through said mixture compartment, when the receptacle is tilted into operative position in one direction,'and a valve disposed on the upper side of said receptacle, and yieldingly seatedagainst said mixture outlet innormal position of said receptacle, whereby said valve slides off its seat and opens said mixture outlet according to the degree to which said receptacle is tilted,

I said valve having a cam at its upper face extending radially thereon and of suitable height to bear against the valve seat to remove the valve from its seat the further the greater the angle is through which said receptacle is tilted, to increase the size-of the passage between said mixture compartment and said outlet if the receptacle is tilted into operative position, said cam remaining inoperative when said receptacle is tilted in opposite direction and the valve slides off its seat to admit only air to said mixture outlet.

26. In a carbureter of the character described, the combination with an outer shell and a fuel receptacle disposed therein to rock on horizontal trunnions journaled in said shell and adapted when rocked to supply fuel into the space between the shell and the receptacle through orifices provided in its wall, said shell comprising an upper portion of substantially hemispherical shape with a mixture outlet at the top and of sufficient size to form a mixing chamber between its wall and the upper receptacle portion, the lowerportion of said shell being formed of a cone shaped ring joining the upper shell with its upper rim and tapering away from it to increase the space between the receptacle and the ring wall toward its lower rim, said lower rim having a substantially hemispherical screen basket attached to it to admit air to the interior of the lower shell portion which airfis permitted to pass into the mixing chamber past said orifices when said receptacle is tilted, and spring hasps for yieldingly joining said two shell portions. 27. Ina carbureter of the character described, the combination of the rotatable fuel receptacle, means of supplying fuel thereto, a fuel supply valve, a float, a lever connected to said float, and a roller carried by said lever arranged adjacent to the valve but lateral to its axis.

28. In a carbureter of the character described, the combination with a shell having an air inlet and a mixture outlet, a fuel receptacle pivotally disposed in said shell and having its wall'apertured to discharge fuel shell, having its wall apertured to' discharge' fuel into said shell, means for supplying fuel to the said receptacle, a valve for controlling said fuel supply automatically operating to stop the fuel supply when the fuel receptacle is removed.

31. A carbureter of the character described, having a fuel supply valve, a rotatable fuel receptacle, a float within'said receptacle, apivoted and rotatable lever connected to said float and having operative connection with said valve by means vary ing the extent of opening of the valve with both the pivotal and rotatable changes of closing the Same below the carbnreting position of the lever. chamber, the shell being flared or widened 32. In a carbureter of the character debelow said receptacle to free the air supply. 10 scribed, the combination of a shell having a ELMER S. SMITH. 5 carbureting chamber, a rotatable fuel recep- Witnesses:

tacle and valve pivoted in saidv shell, aper- HAR Y-E. KNIGHT, tured to discharge fuel, and approximately M. G. CRAWFORD. 

